Cercidiphyllum japonicum, Davidia involucrata, silver and other precious Juan tree species, in particular, are living fossils, known as the dovetree into a million-Health Mu over the world rare.

• 有连香树、珙桐、银鹃树等珍贵树种，尤其是有活化石之称的珙桐成片生长达万亩以上，举世罕见。